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Galina-37 [17]
3 years ago
5

Solve for x and y: 7y−5x=31 & x=4−2y

Mathematics
2 answers:
horrorfan [7]3 years ago
7 0
7*y - 5*(4-2y) = 7y - 20 +10y = 17y-20 = 31,

y =3, x = -2.

Weird 20 min without answer!
Brrunno [24]3 years ago
3 0
Y =3 x=-2 hope it helps
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Step-by-step explanation:

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Answer:

4.32

Step-by-step explanation:

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find the exponential regression equation for the data points (-4, 0.75), (-2, 6), (3, 28), and (5, 162)
zubka84 [21]
<span>for that, what you need is a calculator... like say a TI(texas instruments) 83 or 83plus or higher, will do regressions, if you have an android device like a phone or tablet, you can also get an app from the play store "Andie's graph", is a TI calculator emulator, it works just like the calculator itself, you'd only need the ROM 

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